I loved ghost stories creaky staircases stormy nights. If it guaranteed nightmares I read it by flashlight after midnight.
London underground took me on a tour of all the hidden places the disused shafts and staircases... that was very interesting.
In the photographs themselves there's a definite contrast between the figures and the location - I like that kind of California backyard look; clapboard houses staircases outdoors.
I don't know that there are haunted houses. I know that there are dark staircases and haunted people.
In matters of climbing long staircases how many stairs there are is not as important as how strong a will you have!